Bugfix/bad matching

[krisgesling]

Description

This further improves the CPS matching logic for News stations.

• Most importantly it no longer attempts to match at all if there is no "News" vocab present in the search phrase eg "news", "briefing", "headlines" etc.
• It also increases the minimum required fuzzy_match confidence from 0.5 > 0.6

New tests added.

Fixes #100

Type of PR

• [x] Bugfix
• [ ] Feature implementation
• [ ] Refactor of code (without functional changes)
• [ ] Documentation improvements
• [ ] Test improvements